BDS Blowers
Thread Starter
Drifting
Joined: Jun 2009
Posts: 1,277
Likes: 275
From: Leo IN
BDS Blowers
Hey all,
Just curious, my neighbor has a crazy big (610 CI, I think) big block chevy with a BDS 10-71 blower.
He has about 15 miles on it and has had to take the blower back. Looking inside, the rotors were all chewed up and the blower itself would not turn (seized).
Talking with him, BDS would not warranty fix the blower, so he had to shell out about $1500 to get the blower back to working order.
Is this normal? Anything that we should watchout for when reassembling?
Honestly, the most it has run is puttering back and forth to a show and a little around the neighborhood. I think the most running time was on a dyno (it was professionally built).
Thoughts?
-- Joe
Just curious, my neighbor has a crazy big (610 CI, I think) big block chevy with a BDS 10-71 blower.
He has about 15 miles on it and has had to take the blower back. Looking inside, the rotors were all chewed up and the blower itself would not turn (seized).
Talking with him, BDS would not warranty fix the blower, so he had to shell out about $1500 to get the blower back to working order.
Is this normal? Anything that we should watchout for when reassembling?
Honestly, the most it has run is puttering back and forth to a show and a little around the neighborhood. I think the most running time was on a dyno (it was professionally built).
Thoughts?
-- Joe
Burning Brakes
Joined: Dec 2006
Posts: 1,098
Likes: 80
From: Gilroy CA
Something similar happened to me a few years back when we installed a new Kuhl 1471 on my 621" boat motor. They had set up the blower for alcohol use instead of gas. Since alcohol runs cooler the tolerances were too tight and it seized up while on the warm up cycle on the dyno. (Kuhl fixed it under warranty). If your neighbors motor made it through a few dyno pulls, the problem is probably something else though. Did BDS have any ideas on why it seized up?
Thread Starter
Drifting
Joined: Jun 2009
Posts: 1,277
Likes: 275
From: Leo IN
Apparently, they mentioned something about the manifold bolt torque. That does not hold water with me on two counts:
1. It was professionally installed and ran on the dyno. If it was not torqued correctly there would have been a manifold leak that would have been detected right away.
2. If it were not torqued correctly, the manifold would not have been true (which it is) and I don't think that it would have affected the rotors.
Interesting about setting the blower up for alcohol vs. gas....
-- Joe
1. It was professionally installed and ran on the dyno. If it was not torqued correctly there would have been a manifold leak that would have been detected right away.
2. If it were not torqued correctly, the manifold would not have been true (which it is) and I don't think that it would have affected the rotors.
Interesting about setting the blower up for alcohol vs. gas....
-- Joe
Burning Brakes
Joined: Dec 2006
Posts: 1,098
Likes: 80
From: Gilroy CA
I agree with you that it seems to me that manifold torque would be an unlikely cause. You might want to contact one of the major boat motor builders to get their take on the problem. They build a lot of the big inch blower motors and might have some good input for you. Here on the west coast we have Larry Peto in Tucson, Paul Pfaff and Bob Teaque in So. Cal. Any of these guys could probably answer your question. 
